X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=modutils%2Frmmod.c;h=df50e58afe4be1f6c4639ecedecc36c443131cd3;hb=9a4100cf53f75356854ce752374babf8135c3f42;hp=ee32dfdefceb838fe481d0ef7a03072d522bd809;hpb=1f63229a8e5384bcc2ea99c9063383d3960fe275;p=oweals%2Fbusybox.git

diff --git a/modutils/rmmod.c b/modutils/rmmod.c
index ee32dfdef..df50e58af 100644
--- a/modutils/rmmod.c
+++ b/modutils/rmmod.c
@@ -5,8 +5,32 @@
  * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
  * Copyright (C) 2008 Timo Teras <timo.teras@iki.fi>
  *
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
+//config:config RMMOD
+//config:	bool "rmmod (3.6 kb)"
+//config:	default y
+//config:	select PLATFORM_LINUX
+//config:	help
+//config:	rmmod is used to unload specified modules from the kernel.
+
+//applet:IF_RMMOD(IF_NOT_MODPROBE_SMALL(APPLET_NOEXEC(rmmod, rmmod, BB_DIR_SBIN, BB_SUID_DROP, rmmod)))
+
+//kbuild:ifneq ($(CONFIG_MODPROBE_SMALL),y)
+//kbuild:lib-$(CONFIG_RMMOD) += rmmod.o modutils.o
+//kbuild:endif
+
+//usage:#if !ENABLE_MODPROBE_SMALL
+//usage:#define rmmod_trivial_usage
+//usage:       "[-wfa] [MODULE]..."
+//usage:#define rmmod_full_usage "\n\n"
+//usage:       "Unload kernel modules\n"
+//usage:     "\n	-w	Wait until the module is no longer used"
+//usage:     "\n	-f	Force unload"
+//usage:     "\n	-a	Remove all unused modules (recursively)"
+//usage:#define rmmod_example_usage
+//usage:       "$ rmmod tulip\n"
+//usage:#endif
 
 #include "libbb.h"
 #include "modutils.h"
@@ -14,19 +38,20 @@
 int rmmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int rmmod_main(int argc UNUSED_PARAM, char **argv)
 {
-	int n;
+	int n, err;
 	unsigned flags = O_NONBLOCK | O_EXCL;
 
 	/* Parse command line. */
 	n = getopt32(argv, "wfas"); // -s ignored
 	argv += optind;
-	if (n & 1)	// --wait
+	if (n & 1)  // --wait
 		flags &= ~O_NONBLOCK;
-	if (n & 2)	// --force
+	if (n & 2)  // --force
 		flags |= O_TRUNC;
 	if (n & 4) {
 		/* Unload _all_ unused modules via NULL delete_module() call */
-		if (bb_delete_module(NULL, flags) != 0 && errno != EFAULT)
+		err = bb_delete_module(NULL, flags);
+		if (err && err != EFAULT)
 			bb_perror_msg_and_die("rmmod");
 		return EXIT_SUCCESS;
 	}
@@ -44,9 +69,10 @@ int rmmod_main(int argc UNUSED_PARAM, char **argv)
 			safe_strncpy(modname, bname, MODULE_NAME_LEN);
 		else
 			filename2modname(bname, modname);
-		if (bb_delete_module(modname, flags))
-			bb_error_msg_and_die("can't unload '%s': %s",
-					     modname, moderror(errno));
+		err = bb_delete_module(modname, flags);
+		if (err)
+			bb_perror_msg_and_die("can't unload module '%s'",
+					modname);
 	}
 
 	return EXIT_SUCCESS;